JP2003129772A - Louver device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a louver device which inhibits a gap from being formed between a louver blade and an adjacent louver blade when the louver blade is turned to shield the light. SOLUTION: In this louver device, the louver blades 1, which are juxtaposed in approximate parallel with one another, are longitudinally turned for light shielding and daylighting; either of a recess and a protrusion of meshing parts 3, which mesh with each other via the recess and the protrusion, is formed in an overlap part 2a in which the louver blade 1a overlaps the adjacent louver blade 1b when the louver blade 1a is turned to shield the light; and the other one of the recess and protrusion is formed in a part 2b, corresponding to the overlap part 2a, of the adjacent louver blade 1b.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a louver device provided on a window to shield light and collect light.

[0002]

2. Description of the Related Art Conventionally, a louver device is provided in a window to block and collect light in order to block light such as direct sunlight from a window.

As shown in FIG. 5, a louver device provided on a window is provided with a plurality of plate-shaped louver blades 1 which are long in the left-right direction in the vertical direction, and each louver blade 1 is rotated around its longitudinal direction to be adjacent to each other. A gap is formed between the matching louver blades 1 to illuminate the interior of the room through this gap, or the adjacent louver blades 1 are overlapped to eliminate the gap to block light. FIG. 7 shows a louver blade 1'of a conventional louver device.

The louver blade 1'of this conventional louver device has a diffusing portion 5 formed below the up-down direction (that is, the short-side direction) to allow the light to pass while diffusing while not advancing straight. Since the light-shielding portion 6 is formed on the upper side to block light without transmitting it, direct sunlight can be diffused by the diffusing portion 5 provided on the louver blade 1'and the diffused light can be taken into the room, resulting in glare. It is possible to take in the indirect light of soft diffused light that is neither too dark nor too dark.

However, in such a louver blade 1 ′, the louver blade 1 ′ is rotated to adjoin the louver blades 1 ′ so as to shield the light, because the louver blades 1 ′ are varied in shape due to manufacturing errors or deformed when the louver device is used. When the louver blades 1'are overlapped to eliminate the gap 4 formed between the adjacent louver blades 1 ', a gap as shown in FIG. 4 is formed, and there is a problem that light leaks through the gap 4.

[0006]

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and an object of the present invention is to provide a space between adjacent louver blades when the louver blades are rotated to shield light. An object of the present invention is to provide a louver device that prevents formation of a gap as much as possible.

[0007]

In order to solve the above-mentioned problems, a louver device according to the present invention is a louver which shields and collects light by rotating a plurality of louver blades 1 arranged substantially in parallel about a longitudinal direction. In the device, when the louver blades 1a are rotated to shield light, the adjacent louver blades 1a
By forming one of the concave portion and the convex portion of the meshing portion 3 that meshes with the concave and convex portions and the other of the concave portion and the convex portion, respectively, in the overlapping portion 2a with b and the portion 2b of the adjacent louver blade 1 corresponding to the overlapping portion 2a. It is characterized by being formed. With such a configuration, even if the overlapping portion 2a of the louver blade 1a adjacent to the adjacent louver blade 1b has a variation in shape due to a manufacturing error or a deformation caused during use, the louver adjacent to the overlapping portion 2a. Overlapping part 2 of blade 1
Since the concave portion and the convex portion of the meshing portion 3 that meshes with the concave and convex portions are provided in the portion corresponding to b, it is possible to prevent the wide gap 4 through which the light can go straight from being formed by the concave portion and the convex portion. Therefore, it is possible to prevent light from leaking through the gap 4.

Further, one of the concave portion and the convex portion of the meshing portion 3 that meshes with the concave portion and the convex portion of the overlapping portion 2a of the louver blade 1a and the portion 2b of the adjacent louver blade 1b corresponding to the overlapping portion 2a. It is preferable to form a plurality of sets of and. With such a configuration, it is possible to further prevent the wide gap 4 through which the light can travel straight from being formed by the concave portions and the convex portions of the plurality of sets of the meshing portions 3, and the light leaks from the gap 4. It can be further suppressed from entering.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described below based on the embodiments shown in the accompanying drawings.

In the louver device of this embodiment, a plurality of plate-shaped louver blades 1 which are long in the left-right direction are arranged in parallel in a substantially vertical direction, and each louver blade 1 is rotatable about its longitudinal direction. By changing the rotation angle of, the light is shielded from the window, the lighting state is switched, and the lighting amount is adjusted. FIG. 5 shows a schematic perspective view of the louver device. In addition, in the one shown in FIG. 5, the louver blade 1 is rotated by manually pulling a string or the like attached to the louver blade 1, but like the one shown in FIG.
A single plate-shaped moving body 81 is connected to a longitudinal end portion of each louver blade 1 and a driving portion 82 of driving means such as an electric motor via a crank member 83 or the like, and the driving portion 8 of the driving means is connected.
You may make it rotate each louver blade 1 interlockingly by rotating 2.

As shown in FIG. 1, the louver vane 1 has a diffusing portion 5 formed below the up-down direction (that is, the short-side direction) to allow the light to pass through while diffusing it, although it does not go straight. Light-shielding portion 6 that blocks the light without transmitting it at all
There is. The light-shielding portion 6 of the louver blade 1 is partially bent so as to have rigidity that does not cause excessive bending in the left and right longitudinal directions, and is formed of a material such as aluminum, synthetic resin, or metal. In addition, the diffusing section 5 of the louver blade 1 is a semi-transparent material that transmits light while diffusing it, for example, a transparent synthetic resin that has been opacified or embossed, or a film that diffuses light is attached to a transparent material. It is formed by a tatami mat. By providing the louver blade 1 with the diffusing section 5 in this manner, direct sunlight can be diffused and the diffused light can be taken into the room, and indirect light called soft diffused light that is not too dazzling or too dark can be taken into the room. It becomes possible to be crowded. In addition, the louver blade 1 of the present embodiment
The light-shielding portion 6 and the diffusing portion 5 are integrally formed by a method such as two-color molding or fusion bonding. However, the louver blade 1 is not particularly provided with such a diffusing portion 5. The whole may be the light shielding unit 6.

In order to shield light from such louver blades 1, a plurality of louver blades 1 arranged in parallel are changed in rotation angle,
The gap 4 formed between the louver blade 1 and the louver blade 1 adjacent to the louver blade 1 is eliminated or the gap 4 is reduced as much as possible. At this time, in the overlapping portion 2 overlapping the adjacent louver blade 1, either one of the concave portion and the convex portion of the meshing portion 3 including the concave portion and the convex portion that mesh with the concave and convex portions is provided. A portion corresponding to the overlapping portion 2, that is, the overlapping portion 2 on the side of the adjacent louver blade 1 is provided with the other of the above concave portions or convex portions, which will be described below.

1 and 2 show an example of the louver blade 1 of this embodiment. In FIG. 1, for convenience, the left louver blade is 1a and the right louver blade is 1b.
And the overlapping part. A rib 7 is provided upward at the end of the overlapping portion 2a of the louver blade 1a where the diffusion portion 5 is not formed.
1 is provided so as to project, and the concave slope of the rib 71 on the side of the diffusing portion 5 serves as the concave portion 31a of the meshing portion 3. A convex portion 31b of the meshing portion 3 that meshes with the concave portion 31a of the meshing portion 3 is formed at the end of the overlapping portion 2b of the louver blade 1b on the side where the diffusion portion 5 is not formed. The convex portion 31b is formed by bending the end of the louver blade 1b on the side where the diffusion portion 5 is not formed, upward. This overlapping part 2a, 2
Further, another set of meshing portions 3 (32a, 32b) is formed on b, which is the overlapping portion 2a of the louver blade 1a.
A convex portion 32a protruding upward in a slight edge shape is formed at the end portion on the side where the diffusion portion 5 is formed.
The concave portion 32b of the meshing portion 3 that meshes with is formed at the end of the overlapping portion 2b of the louver blade 1b on the side where the diffusion portion 5 is formed. The concave portion 32b has a rib 72 projecting downward from the end of the overlapping portion 2b, and the concave slope of the rib 72 on the side where the diffusion portion 5 is not provided is the concave portion 32b.

Further, as shown in FIG. 2, the louver blade 1
The same concave portion 31a 'and convex portion 32 as the concave portion 31a and convex portion 32a of the meshing portion 3 formed at both ends of the overlapping portion 2a of a.
a'is also formed on the overlapping portion 2a 'with the louver blade (not shown) located on the further right side of the louver blade 1b, and similarly is formed on both ends of the overlapping portion 2b of the louver blade 1b. The same convex portion 31b 'and concave portion 32b' as the raised convex portion 31b and concave portion 32b are also formed in the overlapping portion 2b 'with the louver blade (not shown) located to the right of the louver blade 1a, These also engage with the concave portions or the convex portions of the engaging portion formed at the corresponding portions of the adjacent louver blades.

By doing so, as shown in FIG. 1, it is possible to reliably prevent the formation of the gap 4 between the adjacent louver blades 1 due to the uneven engagement in the overlapping portion 2. Further, even when the louver blade 1 has a variation in shape due to a manufacturing error or a deformation caused during use, as shown in FIG. 2, the unevenness of the meshing portion 3 formed in the overlapping portion 2 causes the light to go straight. It is possible to prevent the formation of a wide gap 4 that would otherwise occur, and to prevent light from leaking through the gap 4.

3 and 4 show other examples of the louver blade 1, respectively.

Compared with the above example shown in FIGS. 1 and 2, the structure shown in FIG. 3 is provided with only the meshing parts 3 (that is, 31a and 31b) on the side opposite to the diffusing part 5 and the meshing on the diffusing part 5 side. Part 3
(That is, 32a and 32b) are not provided.
Further, the concave portion 31a of the louver blade 1a is not formed by protruding the rib 71, but is formed by punching the surface of the louver blade 1a. The convex portion 31b of the meshing portion 3 of the louver blade 1b that meshes with the concave portion 31a is not formed by bending the end portion of the louver blade 1b on the side where the diffusion portion 5 is not formed upward. It is formed by projecting a rib 73 downward at the end.

Further, the one shown in FIG. 4 is different from the above example shown in FIG. 3 in the convex portion 31a of the louver blade 1a. More specifically, the convex portion 31 of the louver blade 1a
At the same time as a, the rib 71 is formed on the surface of the louver blade 1a at the same time as the rib 71 is projected, and a concave portion 31a is formed by the concave slope of the rib 71 and the formed portion. It is a thing.

In this way, by providing only one set of the meshing portions 3 in the overlapping portion 2 without providing a plurality of the meshing portions 3, a wide gap 4 through which the light can go straight by the concave portion and the convex portion of the meshing portion 3 with a simple structure. Can be prevented from being formed, and light can be prevented from leaking through the gap 4.

[0020]

As described above, in the invention according to claim 1 of the present invention, in the louver device for shielding light and collecting light by rotating a plurality of louver blades arranged in parallel substantially in the longitudinal direction. Any of a concave portion or a convex portion of a meshing portion that meshes unevenly with an overlapping portion with an adjacent louver blade and a portion corresponding to the overlapping portion of an adjacent louver blade when the louver blade is rotated to shield light. Since one of the louver blades and the other of the louver blades are formed, even if there is a variation in shape due to a manufacturing error in the overlapping portion of the louver blade with the adjacent louver blade or a deformation caused during use, the louver adjacent to the overlapping portion. Since the concave portion and the convex portion of the meshing portion that mesh with the concave and convex portions are respectively provided in the portions corresponding to the overlapping portions of the blades, the concave portion and the convex portion form a wide gap through which light can go straight. Can be prevented, it is possible to prevent the accidentally get light leaks from this gap.

In addition to the effect of the invention described in claim 1, in addition to the effect of the invention described in claim 1, the overlapped portion of the louver blade and the portion of the adjacent louver blade corresponding to the overlapped portion are intermeshed. Since a plurality of sets of one of the concave portion and the convex portion of the meshing portion and the other of the meshing portion are formed, it is possible to further form a wide gap through which the light can go straight by the concave portion and the convex portion of the plurality of pairs of the meshing portion. It is possible to prevent the light from leaking through the gap.

[Brief description of drawings]

FIG. 1 is a side view of two adjacent louver blades in an embodiment of the present invention.

FIG. 2 is a side view of the same as above when a gap is formed between the louver blades.

FIG. 3 is a side view of two louver blades of another example of the above.

FIG. 4 is a side view of two louver blades of another example of the above.

FIG. 5 is a schematic perspective view of a louver device.

FIG. 6 is a perspective view of a main part of another example of the louver device.

FIG. 7 is a side view of two adjacent louver blades in a conventional louver device.

[Explanation of symbols]

1 louver blade 1a Louver blade 1b louver blade 2a overlapping part 2b Overlapping site 3 meshing part

Continued front page    (72) Inventor Shinji Adachi             1048, Kadoma, Kadoma-shi, Osaka Matsushita Electric Works Co., Ltd.             Inside the company (72) Inventor Yoshiyasu Ito             1048, Kadoma, Kadoma-shi, Osaka Matsushita Electric Works Co., Ltd.             Inside the company

Claims (2)

[Claims] 1. A louver device for shielding and collecting light by rotating a plurality of louver blades arranged substantially parallel to each other around a longitudinal direction, and adjacent louver blades when the louver blades are rotated for light shielding. And a portion corresponding to the overlapping portion of the louver blade adjacent to the louver blade, and one of the concave portion and the convex portion of the meshing portion that engages with the concave and convex portions, and the other portion are formed respectively. Louver device. 2. A plurality of sets of either one of the concave portion or the convex portion of the meshing portion that meshes with the concave and convex portions and the other of the concave portion and the convex portion are formed in the overlapping portion of the louver blade and the portion of the adjacent louver blade corresponding to the overlapping portion. The louver device according to claim 1, wherein the louver device comprises: